Undercoating inside of quarters yes/no

[Jocigar]

Curious to get some opinions on this process.   To do -or- not to do.. is the first question.

If yes, how did you go about it. (products and process)

thanks

[blown motor]

I assume you're restoring an e body. If so, you probably don't intend to drive it in the rain or on salty roads. In which case why do you need undercoating?   

[Brads70]

I would , if not so much for rust prevention then for sound deadening ?

[PLUM72]

I would use something, undercoating, bed liner, lizard skin, etc.  The reason being it helps deaden some of the hollow sound.  If you apply prior to installing the panel it should go without saying to stay away from the weld/connection points.  If you decide against it, at least put a little paint to improve corrosion resistance.  When the seasons change and you get those wild temp swings, everything metal seems to "sweat" or take on a bit of moisture even if the car sits.

[Jocigar]

Thanks all, 

To elaborate, I was not asking from a practical stand point but rather as it is taken by the mopar community.

Since we go through trouble of date correct/numbers correct parts, would an enthusiast walking around Carlisle for example, point their finger at no undercoating on qtr in the same way as a they would a wrong master cylinder or radiator number or fan blade? perhaps not.

[70vert]

True undercoating was a dealer installed option (I believe), so it is neither right or wrong.

As far as inside the quarter panel, behind the door panels, etc. I can't believe anyone could see it. But mine is not an OEM show car so I don't know the levels of strictness there. 

[blown motor]

True undercoating was a dealer installed option (I believe), so it is neither right or wrong.

As far as inside the quarter panel, behind the door panels, etc. I can't believe anyone could see it. But mine is not an OEM show car so I don't know the levels of strictness there. 

True undercoating was part of a package that included the hood insulation pad, in 74 at least.

[Rich G.]

I don't think he's asking about actual undercoating but rather the rough coating that was factory on the inside of the quarter and then painted. ( unless that is just undercoating or a different product. )

[anlauto]

Most refer to it as sound deadener I believe, at least I do

[torredcuda]

Undercoating, sound deadener or whatever you want to call it was applied to the inside of the quarter panels before they were welded on. If you are doing any level of a restoration type job I think it should be there. It is pretty noticeable with the trunk open and yes, I do look for it and think it looks wrong if it`s missing. It also deadens the tinny sound and road noise which is probably why the factory did it.

[Bpret]

Yes you should try to replicate what the factory did. When you open the trunk it's a dead giveaway if it's not there. It's not an entire coating but in the two areas of the inside of the trunk need to be done. It serves a few purposes sound deadened, protects inside of quarter from minor damage. It looks more authentic if done properly. I used restoricks undercoat with a body Shultz spray gun. Not sure he still sells it but he would give you directions and tips on how to do it.https://www.restorick.com/store.htm

[cuda hunter]

Factory installed.  Not dealer installed.         

The undercoating package was different than the inside of the rear quarters as the quarters all had the undercoating.  Your wheel wells and undercarriage were a package deal. 

Yes, put it on.  I agree with Torredcuda.

Can someone confirm?  Did Cody have an undercoating video?  I know he had an organasol video. 

[71GranCoupe]

I would , if not so much for rust prevention then for sound deadening ?

Exactly what I was thinking. Without the undercoating the quarters sound real tinny, not very desirable.

[Moparmade]

Resto Rick has the undercoating and dirtections
How to apply it also could use it in wheel tubs And door skins

[Jocigar]

Thank you all, that was the definitive answer I was looking for... I'll give resto rick a call.

Someone mentioned doors, did they apply in doors also?

Looking at my other cuda, the pattern looks close to picture.   I don't think it goes into trunk extension area?